Re: [PATCH v3] input: qt1070: Add device tree support

[Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>]

On 09/11/2012 12:14 PM, Bo Shen :
> Add qt1070 device tree support
> Using device node to parse irq
> 
> Test this on at91sam9x5ek board
> 
> Signed-off-by: Bo Shen <voice.shen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
> ---
> change since v2
>   Using device node to parse irq,
>   Remove gpio relative stuff
> 
> change since v1
>   Add gpio relative stuff, gpio_is_valid, gpio_request
> ---
>  .../devicetree/bindings/input/atmel-qt1070.txt     |   16 ++++++++++++++++
>  drivers/input/keyboard/qt1070.c                    |    9 +++++++++
>  2 files changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/atmel-qt1070.txt
> 
> diff --git a/Documentation/devicetree/bindings/input/atmel-qt1070.txt b/Documentation/devicetree/bindings/input/atmel-qt1070.txt
> new file mode 100644
> index 0000000..e1fc09e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/atmel-qt1070.txt
> @@ -0,0 +1,16 @@
> +Atmel qt1070 keyboard interface

Nitpicking: there is usually a "*" at the beginning to give it a
title-ish look ;-)

Please tell that

> +
> +Required Properties:
> +- compatible: Should be "atmel,qt1070"
> +- reg: I2C slave address
> +- interrupt-parent: Depends on SoC
> +- interrupts: The interrupt pin number to the cpu, and trigger mode.
> +
> +Example:
> +
> +	qt1070@1b {

I think that you need to replace by a generic name for the node name:

qt1070: keyboard@1b {
	compatible = "atmel,qt1070";
	[..]
};

I found "keyboard" to be the most appropriate in the ePAPR.


> +		compatible = "atmel,qt1070";
> +		reg = <0x1b>;
> +		interrupt-parent = <&pioA>;
> +		interrupts = <7 0x0>;
> +	};
> diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
> index ca68f29..60457dc 100644
> --- a/drivers/input/keyboard/qt1070.c
> +++ b/drivers/input/keyboard/qt1070.c
> @@ -249,10 +249,19 @@ static const struct i2c_device_id qt1070_id[] = {
>  };
>  MODULE_DEVICE_TABLE(i2c, qt1070_id);
>  
> +#ifdef CONFIG_OF
> +static struct of_device_id atmel_qt1070_of_match[] = {
> +	{ .compatible = "atmel,qt1070" },
> +	{ },
> +};
> +MODULE_DEVICE_TABLE(of, atmel_qt1070_of_match);
> +#endif
> +
>  static struct i2c_driver qt1070_driver = {
>  	.driver	= {
>  		.name	= "qt1070",
>  		.owner	= THIS_MODULE,
> +		.of_match_table = of_match_ptr(atmel_qt1070_of_match),
>  	},
>  	.id_table	= qt1070_id,
>  	.probe		= qt1070_probe,
> 

Otherwise, looks good. So, if you agree on my comments and for next
revision, you can add my:

Acked-by: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>

Bye,
-- 
Nicolas Ferre